Starrett 799A Series, Руководство пользователя

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7
Operating Instructions
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Install the battery that comes with the instrument. See item “Installation/
Replacement of battery”. Once installed the caliper will come on
automatically.
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To select the measurement unit needed, press the “mm/IN” button (13).
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To move the slide (5) loosen the slide locking screw (8). Use the thumb
roll (11) to move the slide.
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Check to see if the buttons “zero” (12) and “mm/IN” (13) respond well.
Digital display must be stable and display at any position within the whole
range.
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Clean the measuring faces with a lint-free cloth or chamois.
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External measurement: Close the jaws and press the “zero” button (12) to
reset the display to zero (fig. 1A ). Put the part to be measured as close as
possible to the scale (6) (fig. 1B) and adjust the measuring faces (1) to the
part surface (fig. 1C). Do not apply excessive pressure when measuring
(fig. 2).
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Internal measurement: Close the jaws and press the “zero” button (12) to
reset the display to zero (fig. 3A). Introduce the internal measuring jaws (2)
as deep as possible inside the part and adjust the measuring faces to the
part surface (fig. 3B). To obtain the measurement of an internal diameter
see fig. 3C and to obtain the measurement value inside a slot see fig. 3D.
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Depth measurement: Close the jaws and press the “zero” button (12)
to reset the display to zero (fig. 4A). Keep the depth measuring rod (3)
perpendicularly to the part bottom (fig. 4B & 4C).
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Cam measurement : Close the jaws and press the “zero” button (12) to
reset the display to zero (fig. 5A). Open the jaws in a little bigger dimension
than the cam, place the scribing face (4) against the bottom of the cam and
approach the scribing reference face (10) until the part surface. The cam
value will be shown on the display (fig. 5B).
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